Femoral
Preparation
Femoral Preparation
Step 4 PS Box Preparation (continued)
Figure 24
18
Femoral Box Protection During Tibia
Subluxation
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To protect the prepared femoral box prior to trialing
with a femoral component, place the Triathlon PS
Femoral Box Trial/Protector into the prepared box
by hand (not through impaction) .
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Ensure the box trial is fully seated on the distal and
posterior resections as described above in the box
trialing step .
• The Triathlon PS Femoral Box Trial/Protector
features a slot in which a retractor can be placed
to lever against the distal femur during tibial
subluxation .
• If preferred, select an extraction tool that fits into
the retractor hole for ease of removal .
• Remove the PS Femoral Box Trial/Protector prior
to assembling and implanting the Triathlon PS
femoral component .
Figure 25
To avoid femoral component impingement and to
improve flexion, all osteophytes beyond the posterior
condyles as well as those medially and laterally may be
removed with an osteotome .
Note: If it is difficult to reach the posterior osteophytes
in a tight knee, the tibial resection can be made and
then the osteophytes can more easily be removed .
